Which is fastest? SATA III or RAID 0 SATA II

Guys... which is faster? the new sata 6gb/s is faster than two disks sata 3gb/s in raid 0? And three disk sata 3gb/s in raid 0? What is the breakpoint where sata 3gb in raid 0 is faster than one disk 6gb/s?

Can I do such a comparison?
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  1. jsmith432 said:
    Guys... which is faster? the new sata 6gb/s is faster than two disks sata 3gb/s in raid 0? And three disk sata 3gb/s in raid 0? What is the breakpoint where sata 3gb in raid 0 is faster than one disk 6gb/s?

    Can I do such a comparison?


    If you're talking about physical disk hard drives then the RAID 0 is way way faster. In fact a single 6 gb/s HDD isn't even faster than the fastest 3 gb/s drives. SATA 6 gb/s for a physical disk is just useless really.

    If you're talking SSD then stick w/ the 6 gb/s.
  2. ^+1 mostly

    Very few drives, even SSDs can deliver more than 3gb/s (375 theoretical MB/s) either reading or writing, except for the odd burst.

    A 2 disk RAID 0 can, theoretically, deliver 375 MB/s times 2 (or 6gb/s)

    Therefore, until drives can saturate the new 6gb/s (or even get over the 3gb/s SataII) a properly implemented RAID 0 will win.

    At present SATA III is only necessary for future expansion, and, imho, SSDs will soon be faster than the hardware they serve and the bottleneck will move elsewhere.
  3. I see. thanks for the answers.
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